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<div id="overview"><a href="../../../../../apidocs/name/pehl/taoki/paging/AbstractPagingResource.html">View Javadoc</a></div><pre>

<a name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> name.pehl.taoki.paging;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> java.util.logging.Level;
<a name="4" href="#4">4</a>   
<a name="5" href="#5">5</a>   <strong class="jxr_keyword">import</strong> name.pehl.taoki.paging.parser.PageInfoParseException;
<a name="6" href="#6">6</a>   <strong class="jxr_keyword">import</strong> name.pehl.taoki.paging.parser.PageInfoParser;
<a name="7" href="#7">7</a>   
<a name="8" href="#8">8</a>   <strong class="jxr_keyword">import</strong> org.restlet.Request;
<a name="9" href="#9">9</a>   <strong class="jxr_keyword">import</strong> org.restlet.resource.ServerResource;
<a name="10" href="#10">10</a>  
<a name="11" href="#11">11</a>  <em class="jxr_javadoccomment">/**</em>
<a name="12" href="#12">12</a>  <em class="jxr_javadoccomment"> * Abstract paging resource which implements {@link HasPageInfo}. This class</em>
<a name="13" href="#13">13</a>  <em class="jxr_javadoccomment"> * creates a {@link PageInfo} instance using a specific {@link PageInfoParser}</em>
<a name="14" href="#14">14</a>  <em class="jxr_javadoccomment"> * (specified as constructor argument) based on a specific</em>
<a name="15" href="#15">15</a>  <em class="jxr_javadoccomment"> * {@linkplain #getInput(Request) input}.</em>
<a name="16" href="#16">16</a>  <em class="jxr_javadoccomment"> * </em>
<a name="17" href="#17">17</a>  <em class="jxr_javadoccomment"> * @author $Author: harald.pehl $</em>
<a name="18" href="#18">18</a>  <em class="jxr_javadoccomment"> * @version $Date: 2010-09-10 10:57:39 +0200 (Fr, 10. Sep 2010) $ $Revision: 97</em>
<a name="19" href="#19">19</a>  <em class="jxr_javadoccomment"> *          $</em>
<a name="20" href="#20">20</a>  <em class="jxr_javadoccomment"> */</em>
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">abstract</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../name/pehl/taoki/paging/AbstractPagingResource.html">AbstractPagingResource</a> <strong class="jxr_keyword">extends</strong> ServerResource implements <a href="../../../../name/pehl/taoki/paging/HasPageInfo.html">HasPageInfo</a>
<a name="22" href="#22">22</a>  {
<a name="23" href="#23">23</a>      <strong class="jxr_keyword">private</strong> <a href="../../../../name/pehl/taoki/paging/parser/PageInfoParser.html">PageInfoParser</a> pip;
<a name="24" href="#24">24</a>  
<a name="25" href="#25">25</a>  
<a name="26" href="#26">26</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../name/pehl/taoki/paging/AbstractPagingResource.html">AbstractPagingResource</a>(<a href="../../../../name/pehl/taoki/paging/parser/PageInfoParser.html">PageInfoParser</a> pip)
<a name="27" href="#27">27</a>      {
<a name="28" href="#28">28</a>          <strong class="jxr_keyword">super</strong>();
<a name="29" href="#29">29</a>          <strong class="jxr_keyword">this</strong>.pip = pip;
<a name="30" href="#30">30</a>      }
<a name="31" href="#31">31</a>  
<a name="32" href="#32">32</a>  
<a name="33" href="#33">33</a>      <em class="jxr_javadoccomment">/**</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment">     * Returns an {@link PageInfo} instance using the methods</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment">     * {@link #createPageInfoParser()} and {@link #getInput(Request)}. More</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment">     * precisely the method does the following:</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment">     * &lt;ol&gt;</em>
<a name="38" href="#38">38</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;create a new {@link PageInfoParser} instance by calling</em>
<a name="39" href="#39">39</a>  <em class="jxr_javadoccomment">     * {@link #createPageInfoParser()}</em>
<a name="40" href="#40">40</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;get the input by calling {@link #getInput(Request)}</em>
<a name="41" href="#41">41</a>  <em class="jxr_javadoccomment">     * &lt;li&gt;create an instance of {@link PageInfo} by calling</em>
<a name="42" href="#42">42</a>  <em class="jxr_javadoccomment">     * {@link PageInfoParser#parse(Object)}</em>
<a name="43" href="#43">43</a>  <em class="jxr_javadoccomment">     * &lt;/ol&gt;</em>
<a name="44" href="#44">44</a>  <em class="jxr_javadoccomment">     * &lt;p&gt;</em>
<a name="45" href="#45">45</a>  <em class="jxr_javadoccomment">     * If the input is invalid, an error message is logged.</em>
<a name="46" href="#46">46</a>  <em class="jxr_javadoccomment">     * </em>
<a name="47" href="#47">47</a>  <em class="jxr_javadoccomment">     * @return the {@link PageInfo} instance for the input provided by</em>
<a name="48" href="#48">48</a>  <em class="jxr_javadoccomment">     *         {@link #getInput(Request)} or &lt;code&gt;null&lt;/code&gt; if the input was</em>
<a name="49" href="#49">49</a>  <em class="jxr_javadoccomment">     *         null or invalid.</em>
<a name="50" href="#50">50</a>  <em class="jxr_javadoccomment">     * @see name.pehl.taoki.paging.HasPageInfo#getPageInfo(org.restlet.Request)</em>
<a name="51" href="#51">51</a>  <em class="jxr_javadoccomment">     */</em>
<a name="52" href="#52">52</a>      @Override
<a name="53" href="#53">53</a>      <strong class="jxr_keyword">public</strong> <a href="../../../../name/pehl/taoki/paging/PageInfo.html">PageInfo</a> getPageInfo()
<a name="54" href="#54">54</a>      {
<a name="55" href="#55">55</a>          <a href="../../../../name/pehl/taoki/paging/PageInfo.html">PageInfo</a> pageInfo = <strong class="jxr_keyword">null</strong>;
<a name="56" href="#56">56</a>          <strong class="jxr_keyword">if</strong> (pip != <strong class="jxr_keyword">null</strong>)
<a name="57" href="#57">57</a>          {
<a name="58" href="#58">58</a>              Object input = getInput(getRequest());
<a name="59" href="#59">59</a>              <strong class="jxr_keyword">try</strong>
<a name="60" href="#60">60</a>              {
<a name="61" href="#61">61</a>                  pageInfo = pip.parse(input);
<a name="62" href="#62">62</a>              }
<a name="63" href="#63">63</a>              <strong class="jxr_keyword">catch</strong> (PageInfoParseException e)
<a name="64" href="#64">64</a>              {
<a name="65" href="#65">65</a>                  getLogger().log(Level.SEVERE, <span class="jxr_string">"Could not read page info from \&quot;"</span> + input + <span class="jxr_string">"\&quot;: "</span> + e.getMessage(), e);
<a name="66" href="#66">66</a>              }
<a name="67" href="#67">67</a>          }
<a name="68" href="#68">68</a>          <strong class="jxr_keyword">return</strong> pageInfo;
<a name="69" href="#69">69</a>      }
<a name="70" href="#70">70</a>  
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>      <em class="jxr_javadoccomment">/**</em>
<a name="73" href="#73">73</a>  <em class="jxr_javadoccomment">     * Used to provide the input for the {@link PageInfoParser}.</em>
<a name="74" href="#74">74</a>  <em class="jxr_javadoccomment">     * </em>
<a name="75" href="#75">75</a>  <em class="jxr_javadoccomment">     * @param request</em>
<a name="76" href="#76">76</a>  <em class="jxr_javadoccomment">     * @return</em>
<a name="77" href="#77">77</a>  <em class="jxr_javadoccomment">     */</em>
<a name="78" href="#78">78</a>      <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">abstract</strong> Object getInput(Request request);
<a name="79" href="#79">79</a>  
<a name="80" href="#80">80</a>  
<a name="81" href="#81">81</a>      <strong class="jxr_keyword">protected</strong> <a href="../../../../name/pehl/taoki/paging/parser/PageInfoParser.html">PageInfoParser</a> getPageInfoParser()
<a name="82" href="#82">82</a>      {
<a name="83" href="#83">83</a>          <strong class="jxr_keyword">return</strong> pip;
<a name="84" href="#84">84</a>      }
<a name="85" href="#85">85</a>  }
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